Question

page 4: a living copy machine

1. what are some reasons why a living thing might want exact copies of itself? write your answer here.

page 6: why sexual reproduction?

1. write down some traits that parents pass on to their offspring. in what ways do these traits help a species survive? use the box below for your ideas

page 7: sexual reproduction: after you watch the video
record your answers to the 3 review it questions at the end of the interactivity:
1-
2-
3-
page 8: reproduction—the pros and cons of each method: read it!
reading passage

1. after you have finished reading the passage, describe in your own words what natural selection means in the box below. give one example of how an animals environment can influence the method it uses to reproduce.

page 9: comparing methods of reproduction
arrange it: record two facts about each type of reproduction:
sexual reproduction asexual reproduction
page 10: match it:
match the words to the descriptions in the interactive.
before moving to the next screen, choose two words from the vocabulary list and write a new sentence for each word.
vocabulary words: reproduction, offspring, traits, clone, genes, natural selection
sentence 1
sentence 2

Explanation:

1. A living thing might want exact copies of itself for rapid population - growth in a stable environment where its traits are well - suited. It can also ensure the preservation of its specific genetic makeup.
2. Traits like physical strength, disease - resistance, and camouflage are passed on. Physical strength helps in competing for resources, disease - resistance aids in survival during epidemics, and camouflage helps in avoiding predators.
3. Natural selection is the process by which organisms better adapted to their environment tend to survive and reproduce more successfully. For example, in a desert environment, camels have evolved to store water in their humps, which is an adaptation that influences their survival and reproductive success. For facts about reproduction: Sexual reproduction: involves two parents and creates genetic variation. Asexual reproduction: involves one parent and produces genetically identical offspring. Sample sentences: "The process of reproduction ensures the continuation of a species." "The offspring inherits traits from its parents through genes."

Answer:

1. For rapid population growth in a stable environment and to preserve specific genetic makeup.
2. Traits like physical strength (for competing for resources), disease - resistance (for survival during epidemics).
3. Natural selection is the process by which organisms better adapted to their environment tend to survive and reproduce more successfully. Example: In a desert, camels' ability to store water in their humps influences their reproduction. Sexual Reproduction: Involves two parents, creates genetic variation. Asexual Reproduction: Involves one parent, produces genetically identical offspring. Sentence 1: The process of reproduction ensures the continuation of a species. Sentence 2: The offspring inherits traits from its parents through genes.